/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *
 *    https://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License.
 */
package org.grails.plugins.codecs

import org.codehaus.groovy.runtime.NullObject

class SHA256CodecExtensionMethods extends DigestUtils {

    // Returns the byte[] of the digest
    static encodeAsSHA256(theTarget) {
        if (theTarget == null || theTarget instanceof NullObject) {
            return null
        }
        theTarget.encodeAsSHA256Bytes()?.encodeAsHex()
    }

    static decodeSHA256(theTarget) {
        throw new UnsupportedOperationException('Cannot decode SHA-256 hashes')
    }
}
